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<h1>Snap</h1>

<p>Snap is an extension for the <a href="ruler.html">Ruler</a> to increase its accuracy. When the cursor moves within snap radius to a vertex or a division point, the Ruler will be forced to go through that point instead of the cursor's real position.
<p>The snap radius can be changed in <b>View > Options</b>.
<p>The exact behavior of the snapping can be fine tuned using the <b>Snap fineness</b> toolbar:
<center><img src="snap/01.png"></center>
The numbered buttons enable/disable the following options:

<ul style="list-style-type:none;">
<li><b>1</b> – Snap the Ruler to vertices. When this switch is turned off, all the others will be too.</li>
<li><b>2</b> – Snap the Ruler to the edges' midpoints.</li>
<li><b>3</b> – Snap the Ruler to the edges' trisection points.</li>
<li><b>4</b> – Snap the Ruler to the edges' quadrisection points.</li>
</ul>

Snap <b>1</b> and <b>2</b> are switched on by default.

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